Pseudo likelihood‐based estimation and testing of missingness mechanism function in nonignorable missing data problems

2020 ◽  
Vol 47 (4) ◽  
pp. 1377-1400
Author(s):  
Xuerong Chen ◽  
Guoqing Diao ◽  
Jing Qin
Keyword(s):  
Missing Data ◽  
Nonignorable Missing Data ◽  
Pseudo Likelihood ◽  
Missingness Mechanism ◽  
Mechanism Function ◽  
Nonignorable Missing

scholarly journals Nonstandard conditionally specified models for nonignorable missing data

2020 ◽  
Vol 117 (32) ◽  
pp. 19045-19053
Author(s):  
Alexander M. Franks ◽  
Edoardo M. Airoldi ◽  
Donald B. Rubin
Keyword(s):  
Systems Biology ◽  
Missing Data ◽  
Joint Distribution ◽  
Exponential Family ◽  
Nonignorable Missing Data ◽  
Data Analyses ◽  
Missingness Mechanism ◽  
Conditionally Specified Models ◽  
Nonignorable Missing ◽  
Family Models

Data analyses typically rely upon assumptions about the missingness mechanisms that lead to observed versus missing data, assumptions that are typically unassessable. We explore an approach where the joint distribution of observed data and missing data are specified in a nonstandard way. In this formulation, which traces back to a representation of the joint distribution of the data and missingness mechanism, apparently first proposed by J. W. Tukey, the modeling assumptions about the distributions are either assessable or are designed to allow relatively easy incorporation of substantive knowledge about the problem at hand, thereby offering a possibly realistic portrayal of the data, both observed and missing. We develop Tukey’s representation for exponential-family models, propose a computationally tractable approach to inference in this class of models, and offer some general theoretical comments. We then illustrate the utility of this approach with an example in systems biology.

Multiple Imputation Analysis for Nonignorable Missing Data

2021 ◽  
pp. 375-406
Author(s):  
Yulei He ◽  
Guangyu Zhang ◽  
Chiu-Hsieh Hsu
Keyword(s):  
Missing Data ◽  
Multiple Imputation ◽  
Nonignorable Missing Data ◽  
Nonignorable Missing
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